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6 papers · 1 filter
Sieve methods in group theory I: Powers in Linear groups
Alexander Lubotzky, Chen Meiri
A general sieve method for groups is formulated. It enables one to "measure" subsets of a finitely generated group. As an application we show that if is a finitely generated no…
On representation of integers by binary quadratic forms
J. Bourgain, E. Fuchs
Given a negative , we give a new upper bound on the number of square free integers which are represented by some but not all forms of the genus of a pr…
Instanton counting with a surface operator and the chain-saw quiver
Hiroaki Kanno, Yuji Tachikawa
We describe the moduli space of SU(N) instantons in the presence of a general surface operator of type N=n_1+ ... +n_M in terms of the representations of the so-called chain-saw qu…
On gravity dual of a metastable vacuum in Klebanov-Strassler theory
Anatoly Dymarsky
We discuss a supergravity description of the metastable state that is created by a stack of anti-D3-branes placed at the tip of the KS background. When the number p of the anti-D3-…
The cosmic X-ray and gamma-ray background from dark matter annihilation
Jesus Zavala, Mark Vogelsberger, Tracy R. Slatyer +2
(Abridged) The extragalactic background light (EBL) observed at multiple wavelengths is a promising tool to probe the nature of dark matter since it might contain a significant con…
Symmetries of Holographic Minimal Models
Matthias R. Gaberdiel, Thomas Hartman
It was recently proposed that a large N limit of a family of minimal model CFTs is dual to a certain higher spin gravity theory in AdS_3, where the 't Hooft coupling constant of th…